Abstract: The present application relates to a hydraulic assembly of a generator of medium-pressure and high-pressure pulsed or non-pulsed jets. The hydraulic assembly includes a hydraulic pipe with a flexible deformable zone. The flexible deformable zone can have a state of rest and a shut-off state. The hydraulic assembly includes a unit configured to hold the hydraulic pipe with a first clamp and a second clamp holding the hydraulic pipe on each side of the flexible deformable zone. The unit can form an open space between the first clamp and the second clamp.

Abstract: The present application relates to a hydraulic assembly (100) of a generator of medium-pressure and high-pressure pulsed or non-pulsed jets comprising a hydraulic pipe: (101) comprising a flexible deformable zone (103) that can have a state of rest and a shut-off state, and a unit (102) configured to hold the hydraulic pipe (101) and comprising a first clamp (110) and a second clamp (111) holding the hydraulic pipe (101) on each side of the flexible deformable zone (103), and an open space (112) defined between the first clamp (110) and the second clamp (111).

Abstract: A nozzle for use in generating a pressure jet of liquid wherein the nozzle has a proximal end for connection to a source of pressurised liquid and a distal end at which the pressure jet is generated, characterised in that the nozzle comprises a hollow tube having an axial lumen wherein the lumen has a restriction at the distal end in which an orifice is formed wherein the orifice has a width and an axial length, the width of the orifice being less than that of the lumen, and wherein the hollow tube and the restriction are integrally moulded from a plastic material.

Abstract: The invention provides a method of performing a musectomy intervention which method comprises applying the following steps to a human or animal body having a mucosal region which needs to be removed: injection of a physiologically acceptable liquid into the mucosal region from a high pressure source of said liquid; dissection of the mucosal region; and removal of the dissected mucosal region; the method is advantageous because it has a reduced risk of perforation of the submucosal musculature.

Abstract: The invention provides a surgical dissection instrument comprising an electrode suitable for use in electrosurgery and a nozzle for use in generating a pressure jet of liquid wherein the electrode has a proximal end for connection to an electrosurgery generator and an electrode tip at the distal end and wherein the nozzle has a proximal end for connection to a source of pressurised liquid and a distal end at which the pressure jet is generated; and a method of using the instrument.

Abstract: The liposuction apparatus (1) comprises in combination a tubular canula (3) having at its distal extremity (18) one or more suction orifices (24) and connected at its proximate extremity (19) to a suction source (14) in communication with these orifices, and a hand piece (2) delivering a spray of working liquid (4) under pressure. The hand piece delivers the spray of liquid under pressure using a conduit opening into an ejection orifice which, when the canula is attached to the hand piece, is located opposite an ejection orifice in the canula located at its distal extremity. A liposuction method using the apparatus is also taught. This invention is of interest to manufacturers and users of surgical equipment.

Abstract: The catheter (1) according to the invention comprises a retractable end tool (9) with a needle (12) in the form of a slide (10) that is integral with a needle base (11) or that pushes this needle under the effect of a continuous or pulsed pressurized fluid. An elastic retraction force, preferably exerted by a spring (21) positioned between the needle-bearing base (11) and the frontal end wall (6) of the catheter, retracts the slide-needle unit to its retracted resting position. This invention is of interest to manufacturers and users of catheters for surgical, therapeutic or diagnostic use.

Abstract: The catheter (1) according to the invention comprises a retractable end tool (9) with a needle (12) in the form of a slide (10) that is integral with a needle base (11) or that pushes this needle under the effect of a continuous or pulsed pressurized fluid. An elastic retraction force, preferably exerted by a spring (21) positioned between the needle-bearing base (11) and the frontal end wall (6) of the catheter, retracts the slide-needle unit to its retracted resting position. This invention is of interest to manufacturers and users of catheters for surgical, therapeutic or diagnostic use.

Abstract: The invention relates to an injection apparatus (1) which blasts pressurised working liquid against the tissue to be treated in order to hollow out an injection channel and which subsequently injects the active product into said channel. The inventive apparatus comprises a reserve of working liquid (2) which can be pressurised and which is connected to a handpiece (5) by means of a main branch (4) of the fluid system. An active end piece (8) is disposed at the end of the handpiece comprising an outlet for a pressurised jet of working liquid. Moreover, the invention comprises a secondary branch opening (25) which is parallel to the main branch and which is fluidically isolated from same. The secondary branch is intended to contain the active product. According to each of the two branches of the system according to pre-determined parameters.

Abstract: The liposuction apparatus (1) comprises in combination a tubular canula (3) having at its distal extremity (18) one or more suction orifices (24) and connected at its proximate extremity (19) to a suction source (14) in communication with these orifices, and a hand piece (2) delivering a spray of working liquid (4) under pressure. The hand piece delivers the spray of liquid under pressure using a conduit opening into an ejection orifice which, when the canula is attached to the hand piece, is located opposite an ejection orifice in the canula located at its distal extremity. A liposuction method using the apparatus is also taught. This invention is of interest to manufacturers and users of surgical equipment.

Abstract: The catheter (1) according to the invention comprises a retractable end tool (9) with a needle (12) in the form of a slide (10) that is integral with a needle base (11) or that pushes this needle under the effect of a continuous or pulsed pressurized fluid. An elastic retraction force, preferably exerted by a spring (21) positioned between the needle-bearing base (11) and the frontal end wall (6) of the catheter, retracts the slide-needle unit to its retracted resting position. This invention is of interest to manufacturers and users of catheters for surgical, therapeutic or diagnostic use.

Abstract: The handpiece for use in a surgical or medical operation, includes means for generating instructions to control operation of at least one apparatus connected to the handpiece or associated with the surgical or medical operation through a pneumatic variation or a series of pneumatic variations in a fluid transported by at least one control conduit connecting the handpiece to a pressure or depression generator, the variation or series of variations being generated by a direct or indirect digital action by the operator on the control conduit or an opening of the conduit, the variation or series of variations being detected, then processed and exploited to remotely control the apparatus.

Abstract: The pressurized liquid dissection apparatus has means for pressurization of working liquids and treatment liquids, controlled discharge means for a pressurized jet, and means for switching or mixing a treatment product with the working liquid or multiplexing means during pulsed mode operation of pressurized pulsed jets. The procedure consists in pressurized spraying of at least one treatment product with the pressurized surgical working jet or separately therefrom but with the same apparatus and during the same intervention so as to realize a surgical act and a therapeutic act during one and the same intervention. This invention is applicable in the surgical and medical fields.

Abstract: The process consists in generating a firing pulse pattern characterized in that it implements a pressurized liquid channel and a pneumatic aspiration channel and in that the periodic firing of the pressurized jet is controlled during the periodic application of aspiration and in that the tension on the tissue is released during the cutoff of the aspiration by aeration. A variant of the process enables obtaining, even in the case of a high repetition rate, a steep trailing edge of the firing pulse, by means of establishment of communication with the exterior of the pressurized liquid feed line near the time of the cutoff of the feeding of the liquid. This invention is of interest to manufacturers of surgical and medical instruments and handpieces for interventions using a pressurized liquid jet.

Abstract: The apparatus connects to a pressurized sterile liquid source SOSPE and to an aspiration source SOSPI and is composed of two basic channels, one for a pressurized sterile liquid jet Jet HP for dissection and the other for a flow jet Jet DEBIT for lavage/rinsing or irrigation, with each channel linked to a specific handpiece. Each of the dissection and the lavage/rinsing channels passes through a flow control unit ESCA1 and ESCA2, respectively, which provides for the opening/closing of the fluid links in continuous or pulsed operation making it possible to operate as a pulsed jet or to obtain a continuous jet. This invention applies primarily to manufacturers of apparatuses for medical or surgical use.

Abstract: The bifunctional generator comprises a closed or self-feeding bag (1) containing the reserve of liquid (2) to be used, the bag being pressure-constrained in a chamber (3) and hydraulically coupled with the supply link (13) of a hand piece (5, 6) by a connecting hydraulic section (9). The pressure generator or delivery generator functioning mode is determined each time by the presence in the connecting section of at least one hydraulic component (19, 21) and/or a hydraulic conformation (20, 22) associated with the particular feature of the hand piece used. This invention is of interest for the manufacturers of medical appliances: aquadissection, resectoscopy, lavage, disinfecting or the like and it as useful applications for various foodstuffs.

Abstract: A surgical dissection instrument using a high-pressure liquid jet including a handpiece provided with a mechanism for generating and controlling the liquid jet. The handpiece has a simple design and is cheap to manufacture and may thus be a single-use handpiece. The handpiece is ergonomically shaped and may be held in one hand with all the function controls being operated by the fingers of the same hand. The instrument has a mechanism provided with a flexible tubing (13) for supplying the high-pressure liquid to the handpiece (10). The handpiece (10) has a squeezing mechanism for locally and momentarily closing off the flexible tubing (13) to cut off the supply of liquid: the mechanism consists of a moveable squeezing projection (25) on a hinged control handle (17), and a stationary squeezing projection (26) secured to the body (15) of the handpiece (10). The handpiece (10) has a mechanism (18) for locking the control handle (17) and cutting off the liquid jet.

Abstract: The irrigation circuit of this apparatus comprises a second pressure sensor CP2 forming a flowmeter with a first CP1, as well as a pressure sensor CPA located downstream.The apparatus also comprises a processing and control unit UCCG which establishes the calculated value of internal pressure within the cavity PI using the pressure variations furnished by pressure sensors CP1, CP2 during a procedure in relation to the values of the pressure differences during operation outside the cavity, which are stored for each resectoscope RT1. . . RTi . . . RTn during an initial calibration phase so that the absorption flow rate can be controlled.This invention is of interest to manufacturers of surgical instruments.